The Bridge at Narni, Jean-Baptiste Camille Corot.
One of my favorite landscapes by Corot (or by anyone for that matter) — a shining example of why Corot and his compatriots in the Forest of Fontainebleau, along with Boudin, Courbet, Constable, Jongkind and a few others, were considered the precursors of French Impressionism, and by extension, most of the subsequent practitioners of painterly realism.
This was a plein air study for this painting, in the National Gallery of Canada (image above, bottom).
The study is in the Louvre; unfortunately not reproduced very large on their site. There is a larger version on Wikipaintings; but the color seems a bit off. I trust the Louvre’s reproduction better.
The top image is from the Louvre’s site; my close up crops are from an attempt to color correct the large version to look more like the Louvre’s reproduction (not quite true).